html * {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html, 
body {
    width:100%;
    height:100%;
}

body{
	/*
	background: lemonchiffon;
	*/
	color: #2c3e51;
  line-height: 36px;
  letter-spacing: 1px;
	font-family: "Source Sans Pro", "Segoe UI", "Lucida Grande", Helvetica, Arial, "Microsoft YaHei", FreeSans, Arimo, "Droid Sans", "wenquanyi micro hei", "Hiragino Sans GB", "Hiragino Sans GB W3", FontAwesome, sans-serif;
}
header {
  position: relative;
  height: 200px;
  height: 100%;
  background: white;
  /*
  background-image: url(https://source.unsplash.com/collection/954550/1920x1080);	
  */
  background-size: cover
  text-align: center;
	margin-bottom: 1em;
  padding-top: 3em;
}
main{
	height: auto;
}

/*page container*/ 
.page-container {
	min-height: 500px;  
}

.page-name{
		color: #000000;
		font-size: 20px;
		margin: 60px 20px 0 20px;
		line-height: 1.4;
		font-family: 'Fang Song', 'Song', 'STSong', sans-serif;
		text-align: center;
}

a {
    color:#474747;
    padding: 5px;
    text-decoration: none;
}
a:hover {
    color:#000000;
    padding:0.5rem;  
}
img {
  max-width: 100%;
}
video{
	max-width: 100%;
}

/*footor*/
footer {
    position: relative;
		bottom: -100px;	
    padding:3rem 0 2rem 0;
    margin-top:5rem;
    background-color:#252525;
    color:#fff !important;
    text-align: center;
}

footer a{
    color:#fff;
}

footer span {
    color:#fff;
}

.social{
	margin: 30px;
  text-align: center;
}

.social a{
	padding: 10px;
	color: #fff;
}

.social a:hover{
    font-weight: bold;
    border-bottom: 1px dashed lightgray;
}

.copyright{
	margin: 20px;
	color: lightgray;
	letter-spacing: 1px;
  text-align: center;	
}

.copyright a{
	color: lightgray;
	/*border-bottom: 1px dashed lightgray;*/
}

.copyright a:hover{
	font-weight: bold;
	border-bottom: 1px solid lightgray;
}



/*文章居中布局*/
.am-u-md-8 {
	width: 66.66666667%;
	margin-left: 15%;
	margin-right: 15%;
}